Bug: Tor 0.4.4.3-alpha: Assertion new_conn failed in retry_all_listeners at src/core/mainloop/connection.c:3047

I changed the torrc from

DirPort 80
ORPort  443

to

DirPort 5.9.158.75:80
ORPort  5.9.158.75:443

and runa "rc-service tor reload" hera at a hardened stable Gentoo Linux with sandboxing and got a

Jul 28 20:30:52.000 [notice] Received reload signal (hup). Reloading config and resetting internal state.
Jul 28 20:30:52.000 [notice] Read configuration file "/etc/tor/torrc".
Jul 28 20:30:52.000 [notice] Processing configuration path "/etc/tor/torrc.d/" at recursion level 1.
Jul 28 20:30:52.000 [notice] Including configuration file "/etc/tor/torrc.d//00_common".
Jul 28 20:30:52.000 [notice] Including configuration file "/etc/tor/torrc.d//20_exit_flag".
Jul 28 20:30:52.000 [notice] Including configuration file "/etc/tor/torrc.d//40_reject".
Jul 28 20:30:52.000 [notice] Including configuration file "/etc/tor/torrc.d//80_accept".
Jul 28 20:30:52.000 [notice] Including configuration file "/etc/tor/torrc.d//90_reject_all".
Jul 28 20:30:52.000 [notice] Opening Directory listener on 5.9.158.75:80
Jul 28 20:30:52.000 [warn] Could not bind to 5.9.158.75:80: Permission denied
Jul 28 20:30:52.000 [err] tor_assertion_failed_(): Bug: src/core/mainloop/connection.c:3047: retry_all_listeners: Assertion new_conn failed; aborting. (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug: Tor 0.4.4.3-alpha: Assertion new_conn failed in retry_all_listeners at src/core/mainloop/connection.c:3047: . Stack trace: (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(log_backtrace_impl+0x59) [0x557166a32c19] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(tor_assertion_failed_+0x150) [0x557166a2de10] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(retry_all_listeners+0x671) [0x55716689fac1] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(set_options+0xa48) [0x5571669ab908] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(+0x1776a0) [0x5571669ac6a0] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(options_init_from_string+0x119) [0x5571669ac8f9] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(options_init_from_torrc+0x372) [0x5571669acf12] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(+0x5d444) [0x557166892444] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/lib64/libevent-2.1.so.7(+0x21c86) [0x7f7a42484c86] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/lib64/libevent-2.1.so.7(event_base_loop+0x57f) [0x7f7a4248596f] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(do_main_loop+0xdd) [0x5571668a728d] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(tor_run_main+0x855) [0x557166893fa5] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(tor_main+0x46) [0x557166892176] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(main+0x19) [0x557166891d49] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /lib64/libc.so.6(__libc_start_main+0xeb) [0x7f7a41d26e2b] (on Tor 0.4.4.3-alpha )
Jul 28 20:30:52.000 [err] Bug:     /usr/bin/tor(_start+0x2a) [0x557166891d9a] (on Tor 0.4.4.3-alpha )

Tor should IMO reject the config change in such a case, or?